The Rochester 2GC was the factory carb on many classic C10 trucks and it’s a solid, tuneable unit when rebuilt properly. Many guys trash these carbs unnecessarily when all they need is a thorough cleaning and a good rebuild kit.
This thread walks through the Rochester 2-barrel rebuild process: disassembly, cleaning the passages, installing new needles and seats, float level adjustment, and initial tuning. We also cover common failure points and what to look for when buying a core.
For trucks that have already moved on, the Edelbrock 1407 750 CFM carb is a popular and reliable replacement for the 2-barrel.
Share your Rochester rebuild tips and tricks below.